Zend certified PHP/Magento developer

Get error after disabling a module

I have upgraded Magento from 2.2.4 to 2.4.0, i have custom modules that are not compatible with the new Magento version.
So i disabled the module but i always got this error

In ClassReader.php line 43:
                                                                  
Class MagentoFrameworkSearchAdapterMysqlMapper does not exist  
                                                                  

In ClassReader.php line 36:
                                                                  
Class MagentoFrameworkSearchAdapterMysqlMapper does not exist